Astronomy and Astrophysics – Astronomy
Scientific paper
May 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..423h&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, May 1985, p. 423-427. NSF-supported research.
Astronomy and Astrophysics
Astronomy
4
Binary Stars, Stellar Spectra, White Dwarf Stars, X Ray Sources, Stellar Mass, Stellar Mass Accretion, Stellar Orbits
Scientific paper
Results of single-trailed spectrograms of the magnetic accreting white-dwarf binary 0139 - 68 are presented. The spectral resolution is approximately 2.5 A and the time resolution is 45 seconds. Line-profile changes and radial velocities are derived and described. A discussion of possible orbital velocities indicates probable masses of 0.2-0.6 solar mass for the white-dwarf primary and 0.3 solar mass for the M-star secondary. The position of the active pole is suggested. The origin of the high-velocity line components is not clear, but their behavior is similar to those in the system VV Pup.
Cowley Anne Pyne
Crampton David
Hutchings John B.
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